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Find 2r2 + 3s3 - r2 + 4t2 - r2 if r = -2, s = -3, and t = 5.
Somehow I came up with 489, but the choices are:
-19

-37

27

19

Question

Need Help?

Find 2r2 + 3s3 - r2 + 4t2 - r2 if r = -2, s = -3, and t = 5.
Somehow I came up with 489, but the choices are:
 -19 

 -37 

 27 

 19

anonymous · Answer

so it would bee
2(-2)2+3(-3)3-2(-2)+4(5)2-4(-2)?
o-o

anonymous · Answer

yes but than I need to solve the equation.. @helppls123

anonymous · Answer

okay gimme a sec lemme try this

anonymous · Answer

okay thanks

anonymous · Answer

im not good at math at all sorry

anonymous · Answer

uhm i got 17 ;o lemme try it a different way

anonymous · Answer

okay thanks for tryinggg @helppls123

anonymous · Answer

yeah this time i got 16 xD I'm not sure what i'm doing wrong. Sorry I couldn't be more of help (: